Home / 289,656,039.90-434,484,059.85-85,204,782.30

Finding the Fourth Proportional to 289,656,039.90, 434,484,059.85 and 85,204,782.30

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Solution

The fourth proportional to 289,656,039.90, 434,484,059.85 and 85,204,782.30 is: 127,807,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,656,039.90 : 434,484,059.85 = 85,204,782.30 : x
  2. Step 2: Convert to fraction form
    289,656,039.90/434,484,059.85 = 85,204,782.30/x
  3. Step 3: Cross multiply
    289,656,039.90x = 434,484,059.85 × 85,204,782.30
  4. Step 4: Simplify right side
    289,656,039.90x = 37,020,119,732,339,424
  5. Step 5: Solve for x
    x = 37,020,119,732,339,424/289,656,039.90
  6. Step 6: Final answer
    x = 127,807,173.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.